Does God know what it's like not to know?

The topic of divine omniscience is well-trodden ground, with philosophers and theologians having asked virtually every question there is to ask about it. The questions regarding God's omniscience to be addressed here are as follows. First, is omniscience best understood as maximal propositional knowledge along with maximal experiential knowledge (both to be defined shortly)? I argue that it is. Second, is it possible for God to be essentially omniscient? I argue that it is not.